Home / 252,731.88-378,971.05-84,192.95

Finding the Fourth Proportional to 252,731.88, 378,971.05 and 84,192.95

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Solution

The fourth proportional to 252,731.88, 378,971.05 and 84,192.95 is: 126,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,731.88 : 378,971.05 = 84,192.95 : x
  2. Step 2: Convert to fraction form
    252,731.88/378,971.05 = 84,192.95/x
  3. Step 3: Cross multiply
    252,731.88x = 378,971.05 × 84,192.95
  4. Step 4: Simplify right side
    252,731.88x = 31,906,688,348.28
  5. Step 5: Solve for x
    x = 31,906,688,348.28/252,731.88
  6. Step 6: Final answer
    x = 126,247.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.